docs: add mcp and skill session config (#106)

examples/mcp-custom-tool/src/mcp-server.ts

@@ -0,0 +1,24 @@
+import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
+import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
+import { z } from "zod";
+
+async function main() {
+  const server = new McpServer({ name: "rand", version: "1.0.0" });
+
+  server.tool(
+    "random_number",
+    "Generate a random integer between min and max (inclusive)",
+    {
+      min: z.number().describe("Minimum value"),
+      max: z.number().describe("Maximum value"),
+    },
+    async ({ min, max }) => ({
+      content: [{ type: "text", text: String(Math.floor(Math.random() * (max - min + 1)) + min) }],
+    }),
+  );
+
+  const transport = new StdioServerTransport();
+  await server.connect(transport);
+}
+
+main();